E-Z trigonometry
By: Douglas Downing.
Contributors: Downing, Douglas.
Edition: 4th ed.
Publisher: Barron's Educational Series
Published: 2009
Place of publication: Hauppauge, NY
Language: eng
ISBN-13: 9780764142512
Subjects: Trigonometry
Notes: Rev. ed. of: Trigonometry, the easy way. 3rd. ed. 2001.

Includes bibliographical references and index.